yeah I get those, "You have 98 updates", ok great. It's probably a pain to try to turn that stuff down. The most interaction I have is with their SMS. I sometimes press 1 to wish people happy birthday.
Facebook has an old phone number and email of mine (like, I've changed countries twice since them). It has warned me every time I've been on the website in the last 2 years, but at least I don't get the "We've been missing you" emails. And it's up to them to cut the wire now.